Minor bug fix for href processing.
Minor bug fix for href processing.

macmillanpublishers/HTMLBook,macmillanpublishers/HTMLBook,macmillanpublishers/HTMLBook,oreillymedia/HTMLBook,oreillymedia/HTMLBook,mushroomgithub/HTMLBook,wastemobile/HTMLBook,gitenberg-dev/HTMLBook,oreillymedia/HTMLBook,gitenberg-dev/HTMLBook,mushroomgithub/HTMLBook,mushroomgithub/HTMLBook,wastemobile/HTMLBook,gitenberg-dev/HTMLBook